Polyfill String.prototyp.fill

Author: mhegazy

src/compiler/commandLineParser.ts

@@ -143,7 +143,7 @@ namespace ts {
  name: "out",
  type: "string",
  isFilePath: false, // This is intentionally broken to support compatability with existing tsconfig files
-  // for correct behaviour, please use outFile
+ // for correct behaviour, please use outFile
  paramType: Diagnostics.FILE,
  },
  {
@@ -464,7 +464,7 @@ namespace ts {
 
  /* @internal */
  export function parseCustomTypeOption(opt: CommandLineOptionOfCustomType, value: string, errors: Diagnostic[]) {
- const key = (value || "").trim().toLowerCase();
+ const key = trimString((value || "")).toLowerCase();
  const map = opt.type;
  if (hasProperty(map, key)) {
  return map[key];
@@ -476,7 +476,7 @@ namespace ts {
 
  /* @internal */
  export function parseListTypeOption(opt: CommandLineOptionOfListType, value: string, errors: Diagnostic[]): (string | number)[] {
- const values = (value || "").trim().split(",");
+ const values = trimString((value || "")).split(",");
  switch (opt.element.type) {
  case "number":
  return ts.map(values, parseInt);
@@ -601,7 +601,7 @@ namespace ts {
  * Read tsconfig.json file
  * @param fileName The path to the config file
  */
- export function readConfigFile(fileName: string, readFile: (path: string) => string): { config?: any; error?: Diagnostic }  {
+ export function readConfigFile(fileName: string, readFile: (path: string) => string): { config?: any; error?: Diagnostic } {
  let text = "";
  try {
  text = readFile(fileName);
@@ -775,7 +775,7 @@ namespace ts {
  defaultOptions: CompilerOptions | TypingOptions, diagnosticMessage: DiagnosticMessage, errors: Diagnostic[]) {
 
  if (!jsonOptions) {
- return ;
+ return;
  }
 
  const optionNameMap = arrayToMap(optionDeclarations, opt => opt.name);
@@ -829,4 +829,8 @@ namespace ts {
  function convertJsonOptionOfListType(option: CommandLineOptionOfListType, values: any[], basePath: string, errors: Diagnostic[]): any[] {
  return filter(map(values, v => convertJsonOption(option.element, v, basePath, errors)), v => !!v);
  }
+
+ function trimString(s: string) {
+ return typeof s.trim === "function" ? s.trim() : s.replace(/^[\s]+|[\s]+$/g, "");
+ }
 }